CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Synergy Pharmaceuticals, Inc. (the "Company") on Form 10-K for the
year ended December 31, 2008 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Gary S. Jacob, Acting Chief Executive Officer of the Company, certify,
pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The
Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The
information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.